package com.jt.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.jt.pojo.User;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Update;
import org.springframework.stereotype.Repository;

import java.util.List;
@Repository

public interface UserMapper extends BaseMapper<User> {

    List<User> findAll();
    @Insert("insert into demo_user(id,name,age,sex)value(null,#{name},#{age},#{sex})")
    void insertUser(User user);
    @Update("update demo_user set name = #{newName}where name =#{oldName}")
    void updateByName(String oldName,String newName);
    @Delete("delete from demo_user where name = #{name}")
    void deleteByName(String name);
    List<User> findId(Integer id);
    List<User> findNameSex(String name,String sex);
    List<User> findAgeSex(Integer age,String sex);
    List<User> contain(String string);
    List<User> findIn(List id );
    List<User> findNull(String name);
}
